2 years ago

In 1990, walter arfeuille of belgium lifted a 281.5 kg object through a distance of 17.1 cm using only his teeth
(a) how much work was done on the object by arfeuille in this lift, assuming the object was lifted at constant speed?

His work was used to increase potential energy of the weight, therefore you can calculate like W=mgh=281.5x9.81x0.171 J
I have heard that the work done later on by his dentist to fix his dentures was quite hard